[DllImport("User32.dll", EntryPoint = "FindWindow")]
private static extern IntPtr FindWindow(string lpClassName,string lpWindowName);
[DllImport("user32.dll", EntryPoint = "FindWindowEx",SetLastError = true)]
private static extern IntPtr FindWindowEx(IntPtr hwndParent,IntPtr hwndChildAfter, stringlpszClass, string lpszWindow);
[DllImport("User32.dll", EntryPoint = "SendMessage")]
private static extern int SendMessage(IntPtr hWnd,int Msg, IntPtr wParam, string lParam);
const int WM_GETTEXT = 0x000D;
const int WM_SETTEXT = 0x000C;
const int WM_CLICK = 0x00F5;
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
int retval = 0; //增加一个返回值用来判断操作是否成功
//string lpszParentClass = "#32770"; //整个窗口的类名
string lpszParentWindow = "Form1"; //窗口标题
string lpszClass = "WindowsForms10.EDIT.app.0.b7ab7b"; //需要查找的子窗口的类名，也就是输入框
//string lpszClass = "Edit";
string lpszClass_Submit = "WindowsForms10.BUTTON.app.0.b7ab7b"; //需要查找的Button的类名
//string lpszClass_Submit = "Button";
string lpszName_Submit = "确定"; //需要查找的Button的标题
string text = "";
IntPtr ParenthWnd = new IntPtr(0);
IntPtr EdithWnd = new IntPtr(0);
//查到窗体，得到整个窗体
ParenthWnd = FindWindow(null, lpszParentWindow);
//判断这个窗体是否有效
if (!ParenthWnd.Equals(IntPtr.Zero))
{
//得到Form1这个子窗体的文本框，并设置其内容
EdithWnd = FindWindowEx(ParenthWnd, EdithWnd, lpszClass, ""); [color=#FF0000]这里获取到的EdithWnd始终为0；[/color]
if (!EdithWnd.Equals(IntPtr.Zero))
{
text = "test1";
//调用SendMessage方法设置其内容
SendMessage(EdithWnd, WM_SETTEXT, IntPtr.Zero, text);
retval++;
}
//得到Button这个子窗体，并触发它的Click事件
EdithWnd = FindWindowEx(ParenthWnd,
(IntPtr)0, lpszClass_Submit, lpszName_Submit);
if (!EdithWnd.Equals(IntPtr.Zero))
{
SendMessage(EdithWnd, WM_CLICK, (IntPtr)0, "0");
retval++;
}
}
}
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